[linux-lvm] Missing link in /dev/<domain>?
Greg Freemyer
greg.freemyer at gmail.com
Fri Aug 11 19:38:56 UTC 2006
On 8/11/06, Alasdair G Kergon <agk at redhat.com> wrote:
> On Fri, Aug 11, 2006 at 01:59:35PM -0400, Greg Freemyer wrote:
> > my-domain-data
> > my-domain-data-real
>
> > The unexpected entry is the -data-real one.
>
> Did you try anything with snapshots?
>
Yes, I routinely perform a snapshot everynight via cron. No idea if a
snapshot existed when the machine went down.
> See what vgmknodes does.
>
I renamed the manually created link from data to data.tmp, then ran vgmknodes.
The data link was successfully recreated.
> Post the output of dmsetup info -c and lvs -va.
>
# dmsetup info -c
Name Maj Min Stat Open Targ Event UUID
TruStore--Data-data-real 253 2 L--w 1 1 0
LVM-mMDI3Wi6Av0TlwI4D905RvPDfWM3rNlBxxpvaosSsuQnSubLnpkprJIBEdn1VHiV-real
TruStore--Data-home 253 0 L--w 1 1 0
LVM-mMDI3Wi6Av0TlwI4D905RvPDfWM3rNlBHU7HFSYOTsxTwH6Pg1c4k0UQOK7O4j6X
TruStore--Data-data 253 3 ---w 0 0 0
LVM-mMDI3Wi6Av0TlwI4D905RvPDfWM3rNlBxxpvaosSsuQnSubLnpkprJIBEdn1VHiV
TruStore--Data-config 253 1 L--w 1 1 0
LVM-mMDI3Wi6Av0TlwI4D905RvPDfWM3rNlBG5XBMCNoneiIFa16MFUHMmmhPgvEF3da
# lvs -va
File descriptor 4 left open
Finding all logical volumes
LV VG #Seg Attr LSize Maj Min KMaj KMin Origin
Snap% Move Copy% Log LV UUID
config TruStore-Data 1 -wi-ao 1.00G -1 -1 253 1
G5XBMC-None-iIFa-16MF-UHMm-mhPg-vEF3da
data TruStore-Data 1 owi-d- 63.00G -1 -1 253 3
xxpvao-sSsu-QnSu-bLnp-kprJ-IBEd-n1VHiV
data_snap TruStore-Data 1 swi--- 45.00G -1 -1 -1 -1 data
m4ZSZG-ba0q-Fgco-sYcy-e0DJ-V3SI-Bb0r6C
home TruStore-Data 1 -wi-ao 10.00G -1 -1 253 0
HU7HFS-YOTs-xTwH-6Pg1-c4k0-UQOK-7O4j6X
Hopefully that is not too badly word wrapped.
> Alasdair
> --
> agk at redhat.com
Thanks
Greg
--
Greg Freemyer
The Norcross Group
Forensics for the 21st Century
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